I'll leave you to debate a historian on the level of abuse in the residential schools and its impact on the students and their succeeding generations. Not something I want to wade into tbh.

Edit: wanted to mention that it is a fair point to being up the technology used to discover the bodies and the fact that they weren't exhumed. Just consider that some may not want the remains of their great uncles and aunts dug up to prove a point to anyone that they feel doesn't need proving.

I'll leave you to debate a historian on the level of abuse in the residential schools and its impact on the students and their succeeding generations. Not something I want to wade into tbh.